Do NOW 9/22/20 Math 7: Circles

Last updated about 5 years ago
3 questions
Note from the author:
rhino
1

What is the formula for circumference of a circle?

1

What is the circumference of a circle with radius of 12cm. Leave your answer in terms of π

1

What is the area of a circle with diameter of 81 cm? Use 3.14 to approximate π. Show all steps!!